The average house extension in Oxford or Buckinghamshire costs between £1,800–£2,800 per m², depending on design, materials, and size. Single-storey builds start around £45,000, while two-storey extensions often exceed £80,000. For an accurate quote for your extension please contact us.

If you would like to have a chat with us, ask any questions or get a quote, just call us free on 0800 124 4646